Added support for OSU Provider provisioning action on click

Added a call to AccessPoint.startOsuProvisioning() to
onPreferenceTreeClick to open up an OSU provider flow when the user
clicks on an AccessPointPreference pertaining to an OSU provider
AccessPoint.

Bug: 118705403
Test: manual, build and tap on the OSU provider AP.
Change-Id: I3c321c2a6d2336a0cc92a30ae051146d2fc05fb7
diff --git a/src/com/android/settings/wifi/WifiSettings.java b/src/com/android/settings/wifi/WifiSettings.java
index eddae06..ca53914 100644
--- a/src/com/android/settings/wifi/WifiSettings.java
+++ b/src/com/android/settings/wifi/WifiSettings.java
@@ -563,7 +563,9 @@
              * networks, or Passpoint provided networks.
              */
             WifiConfiguration config = mSelectedAccessPoint.getConfig();
-            if ((mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) ||
+            if (mSelectedAccessPoint.isOsuProvider()) {
+                mSelectedAccessPoint.startOsuProvisioning();
+            } else if ((mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) ||
                     (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_OWE)) {
                 mSelectedAccessPoint.generateOpenNetworkConfig();
                 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved());